30 March 2023 The Future is the Product of the Past

Lost sketches by Leonardo Da Vinci show that he understood gravity long before Newton

Leonardo da Vinci’s centuries-old sketches show that he may have understood key aspects of gravity long before Galileo, Newton, and Einstein.

Engineers from Caltech have discovered that Leonardo da Vinci’s understanding of gravity—though not wholly accurate—was centuries ahead of his time.

Recent research from the California Institute of Technology looked at long-forgotten diagrams in Leonardo da Vinci’s notebooks. According to a statement from the university these notebooks, which have now been digitized, show experiments from the early 1500s of particles falling from a pitcher, demonstrating gravity is a form of acceleration.

Da Vinci, who lived from 1452 to 1519, was well ahead of the curve in exploring these concepts. It wasn’t until 1604 that Galileo Galilei would theorize that the distance covered by a falling object was proportional to the square of time elapsed and not until the late 17th century that Sir Isaac Newton would expand on that to develop a law of universal gravitation, describing how objects are attracted to one another. Da Vinci’s primary hurdle was being limited by the tools at his disposal. For example, he lacked a means of precisely measuring time as objects fell.

One of da Vinci’s sketches details an experiment involving pouring water from a pitcher to help understand the effects of gravity. Photo: British Library

Da Vinci’s experiments were first spotted by Mory Gharib, the Hans W. Liepmann Professor of Aeronautics and Medical Engineering, in the Codex Arundel, a collection of papers written by da Vinci that cover science, art, and personal topics. In early 2017, Gharib was exploring da Vinci’s techniques of flow visualization to discuss with students he was teaching in a graduate course when he noticed a series of sketches showing triangles generated by sand-like particles pouring out from a jar in the newly released Codex Arundel, which can be viewed online courtesy of the British Library.

“What caught my eye was when he wrote ‘Equatione di Moti‘ on the hypotenuse of one of his sketched triangles—the one that was an isosceles right triangle,” says Gharib, lead author of the Leonardo paper. “I became interested to see what Leonardo meant by that phrase.”

The researchers had to translate da Vinci’s notes into Italian, which were written in his renowned left-handed mirror writing that reads from right to left, in order to analyze the sketches. The researchers then carried out da Vinci’s experiments using computer simulations.

According to Da Vinci’s notes, the velocity of the falling material accelerates downwards, and as the particles fall, they are no longer influenced by the pitcher but are instead accelerated by gravity pulling them downward. However, at the time, he was unable to translate his observations into an equation.

A photograph of one of Leonardo da Vinci's sketches of experiments to understand gravity. Photo: British Library
A photograph of one of Leonardo da Vinci’s sketches of experiments to understand gravity. Photo: British Library

“What we saw is that Leonardo wrestled with this, but he modeled it as the falling object’s distance was proportional to 2 to the t power [with t representing time] instead proportional to t squared,” Chris Roh, co-author of the study and assistant professor at Cornell University, said in the statement. “It’s wrong, but we later found out that he used this sort of wrong equation in the correct way.”

When modeling the water vase experiments, the team yielded the same error da Vinci did centuries ago.

“We don’t know if da Vinci did further experiments or probed this question more deeply,” Gharib said in the statement. “But the fact that he was grappling with this problem in this way — in the early 1500s — demonstrates just how far ahead his thinking was.”

Their findings were published in the journal Leonardo. The paper is titled “Leonardo da Vinci’s Visualization of Gravity as a Form of Acceleration.”

California Institute of Technology

DOI: 10.1162/leon_a_02322

Banner
Related Post

In the new images, Scotland’s biggest Pictish fort is “reconstructed.’

2 November 2021

2 November 2021

Stunning new reconstructions have revealed how Scotland’s largest known Pictish fort may have looked over one thousand years ago. Three-dimensional...

Ancient eggshell in the Northern Cape hiding 300,000 years of history

12 July 2021

12 July 2021

Evidence from an ancient eggshell has revealed important new information about the extreme climate change faced by human early ancestors....

Structures in Turkey’s Panaztepe pointing out a 5,000-year-old settlement found

8 November 2021

8 November 2021

In the 5000-year-old Panaztepe settlement located in the Menemen district of Izmir, structures thought to belong to the oldest period...

Paleontologists have discovered a new species of giant rhino

18 June 2021

18 June 2021

Paleontologists studying in China have found a new species of gigantic rhinoceros, the world’s biggest land animal. According to a...

1,800-Year-Old Sanctuary to Mithras discovered in Spain

8 February 2023

8 February 2023

Archaeologists excavating at Villa del Mitra in Cabra, Spain, have uncovered a sanctuary dedicated to the god Mithras, along with...

The very unknown ancient city of the Mediterranean; Syedra

3 July 2022

3 July 2022

Known as Turkey’s holiday paradise, the Antalya region is a treasure when it comes to ancient cities. Close to the...

1,600-year-old steelyard weight found in Turkey’s ancient city of Hadrianopolis

1 December 2021

1 December 2021

Archeologists have discovered a 1,600-year-old steelyard weight during excavations in the ancient city of Hadrianopolis, located in the Eskipazar district...

One-of-a-kind 1000- years-old gold earring found in Denmark

13 December 2021

13 December 2021

A metal detectorist in Denmark uncovered a one-of-a-kind piece of 11th-century gold jewelry that had never been seen in Scandinavia...

Saudi shipwreck excavation reveals hundreds of 18th-century artifacts on sunken ship in the north Red Sea

25 February 2022

25 February 2022

Divers from Saudi Arabia’s Heritage Authority have discovered a shipwreck in the Red Sea from the 18th century filled with...

New insights into Scotland’s ‘bodies in the bog’

31 March 2022

31 March 2022

Fourteen bodies were found at Cramond near Edinburgh in 1975. New research suggests that two of the remains of these...

Archaeologists Unearthed Third Greatest Fire Temple Existing in Ancient Iran’s Sassanid Era

11 July 2022

11 July 2022

Archaeologists have unearthed ruins of what they believe to be the third-greatest fire temple in ancient Iran during the Sassanid...

Romanian Police Find the Stolen Viking Helmet

21 February 2021

21 February 2021

Romanian police specializing in heritage crimes recovered a medieval helmet of “Viking origin” on February 7, which had disappeared a...

The ancient city of Kastabala will soon have a colonnaded Street

4 September 2021

4 September 2021

The archaeological excavation of the ancient city of Kastabala in Osmaniye Province in southern Turkey continues. Kastabala-Hierapolis is one of...

Remains of painkillers were found in 4500-year-old vessels during excavations at Küllüoba Höyük in Turkey

20 September 2022

20 September 2022

In the excavations of the Early Bronze Age Küllüoba Höyük (Kulluoba Mound) in Eskişehir, where the first urbanization structure of...

Ancient tomb with prayer-related murals found in China’s Shanxi

25 December 2021

25 December 2021

Archaeologists in north China’s Shanxi Province have found an ancient tomb dating back to the Jin Dynasty (1115-1234) with murals...

Comments
Leave a Reply

Your email address will not be published. Required fields are marked *